Genome-wide and candidate gene association studies identify BnPAP17 as conferring the utilization of organic phosphorus in oilseed rape
作者机构:College of Agriculture and Forestry ScienceLinyi UniversityLinyi 27600China National Key Laboratory of Crop Genetic Improvement/Microelement Research Centre/Key Laboratory of Arable Land Conservation(Middle and Lower Reaches of Yangtze River)Ministry of Agriculture and Rural Affairs/Huazhong Agricultural UniversityWuhan 430070China
出 版 物:《Journal of Integrative Agriculture》 (农业科学学报(英文版))
年 卷 期:2024年第23卷第4期
页 面:1134-1149页
核心收录:
基 金:financially supported by the National Natural Science Foundation of China(32201868 and 32001575)
主 题:genome-wide association studies(GWAS) root morphology traits(RMTs) organic phosphorus(Po) oilseed rape BnPAP17
摘 要:Phosphorus(P)is essential for living plants,and P deficiency is one of the key factors limiting the yield in rapeseed production *** the most important organ for plants,root morphology traits(RMTs)play a key role in P *** investigate the genetic variability of RMT under low P availability,we dissected the genetic structure of RMTs by genome-wide association studies(GWAS),linkage mapping and candidate gene association studies(CGAS).A total of 52 suggestive loci were associated with RMTs under P stress conditions in 405 oilseed rape *** purple acid phosphatase gene BnPAP17 was found to control the lateral root number(LRN)and root dry weight(RDW)under low P *** expression of BnPAP17 was increased in shoot tissue in P-efficient cultivars compared to root tissue and P-inefficient cultivars in response to low P ***,the haplotype of BnPAP17^(Hap3)was detected for the selective breeding of P efficiency in oilseed ***-expression of the BnPAP17^(Hap3)could promote the shoot and root growth with enhanced tolerance to low P stress and organic phosphorus(Po)utilization in oilseed ***,these findings increase our understanding of the mechanisms underlying BnPAP17-mediated low P stress tolerance in oilseed rape.